Another point against the authenticity of the quote: The date of the speech is given as 2 February 1835. However, there was in fact no Parliament on that date; it had been dissolved on 29 December 1834, triggering the 1835 General Election, and was not summoned again until 19 February 1835. Here is the relevant page of Hansard.
It depends on which specific component you are referring to:
The First Allied Airborne Army was headquartered at Sunninghill Park under the command of Major General Louis Brereton.
The U.S. XVIII Airborne Corps was headquartered at Ogbourne St. George under Major General Ridgeway.
Detailed planning for Operation market Garden in particular wad done ...